National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

47°F

8°C

Humidity 77%
Wind Speed S 9 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 10 Mar 10:56 am EDT
Extended Forecast for

South Dennis MA

  • Today

    Today: Partly sunny, with a high near 50. Southwest wind 10 to 13 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, cloudy, with a low around 38. Southwest wind 6 to 10 mph.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog between 8am and 11am. Otherwise, cloudy, with a high near 48. South wind 6 to 10 mph.

    High: 48 °F

    Patchy Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 7pm, then a slight chance of rain or light rain between 7pm and 8pm, then a slight chance of rain after 8pm. Patchy fog before 8pm. Otherwise, cloudy, with a low around 40. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: A chance of rain, mainly after 9am. Mostly cloudy, with a high near 50. Southwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 50 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. Northwest wind around 8 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42. West wind 5 to 9 mph becoming south in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain and snow between 10pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 32. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 44. West wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 50. Southwest wind 10 to 13 mph.
Tonight
Patchy fog after 11pm. Otherwise, cloudy, with a low around 38. Southwest wind 6 to 10 mph.
Wednesday
Patchy fog between 8am and 11am. Otherwise, cloudy, with a high near 48. South wind 6 to 10 mph.
Wednesday Night
A slight chance of rain before 7pm, then a slight chance of rain or light rain between 7pm and 8pm, then a slight chance of rain after 8pm. Patchy fog before 8pm. Otherwise, cloudy, with a low around 40. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday
A chance of rain, mainly after 9am. Mostly cloudy, with a high near 50. Southwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 28. Northwest wind around 8 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 42. West wind 5 to 9 mph becoming south in the afternoon.
Friday Night
A chance of rain and snow between 10pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 32. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 44. West wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 31. West wind around 6 mph.
Sunday
Mostly cloudy, with a high near 46. South wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Rain likely. Cloudy, with a low around 37. South wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Monday
Rain. High near 50. South wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
3:44 am EDT Mar 10, 2026
Forecast Valid:
11am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation